Home / 90,099.40-135,246.30-50,733.40

Finding the Fourth Proportional to 90,099.40, 135,246.30 and 50,733.40

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Solution

The fourth proportional to 90,099.40, 135,246.30 and 50,733.40 is: 76,154.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,099.40 : 135,246.30 = 50,733.40 : x
  2. Step 2: Convert to fraction form
    90,099.40/135,246.30 = 50,733.40/x
  3. Step 3: Cross multiply
    90,099.40x = 135,246.30 × 50,733.40
  4. Step 4: Simplify right side
    90,099.40x = 6,861,504,636.42
  5. Step 5: Solve for x
    x = 6,861,504,636.42/90,099.40
  6. Step 6: Final answer
    x = 76,154.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.